The question remains: If pair-programming is so great, wouldn't triplet programming be even greater? Why not? Or why not "take it to the eleven"? Eleven program

The question remains: If pair-programming is so great, wouldn't triplet programming be even greater? Why not? Or why not "take it to the eleven"? Eleven programming. Why is 2 the answer? Why not 42? I can see that pair-programming can help in some situations like getting new team-members up to speed. But I question those who say it should be applied universally, always, as a general rule.